Blue Cardinal Rasbora Care Guide
Rasbora rutteni
Stocking Calculator
Bioload Score
1200
- Max Size
- 5.0 cm / 2.0"
- Temperature
- 22–26°C (72–79°F)
- pH Range
- 6.0 – 7.5
- Min Tank Size
- 75L (20 gal)
- Min Group Size
- 10 fish
- Tank Level
- Bottom-Mid
- Origin
- Southeast Asia
- Temperament
- Peaceful
- Difficulty
- Moderate
- Breeding Difficulty
- Moderate
Diet
Omnivorous; prefers a varied diet that includes high-quality flake foods, small pellets, and live or frozen foods such as brine shrimp, daphnia, and bloodworms.
Community Compatibility
Ideal for community tanks with other peaceful, similarly sized fish. Their calm nature makes them compatible with a variety of tank mates, including small tetras, rasboras, and dwarf shrimp. Avoid large or aggressive species that may intimidate or prey on them.
Good to Know
The Blue Cardinal Rasbora is known for its striking appearance, with a vibrant blue line running along its body, making it a standout species in any planted aquarium. They are appreciated for their peaceful demeanor and the visual impact they bring to a community tank, especially when kept in larger schools.
Gender Differences
Males tend to be slightly more slender and vibrant in coloration than females. Females may be slightly larger and have a rounder belly, especially when gravid.
Stock Blue Cardinal Rasbora in Your Tank
Use our free stocking calculator to see if Blue Cardinal Rasbora fits your aquarium